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12.3.1. Charge Circuit
The voltage from the AC is supplied to the charge circuits. Main charge (180mA at the Battery) of maximum 6-hours is started
soon after the Handset is placed on the Base Unit. Then it changes to Trickle charge to prevent from overcharging.
Q361 and Q362 detect the ON-HOOK state (Handset is placed on Base Unit).
Q371 and Q372 control the charge current.
Q373 sends a signal to the Handset for about 5 seconds soon after the Handset is placed on the Base Unit.
This signal tells that the Handset is being charged on the Base Unit or the charger.
When the signal is received: charged on the Base Unit
No signal: charged on the charger.
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KX-TG5571BXM / KX-TGA550BXM
Summary of Contents for KX-TG5571BXM
Page 8: ...4 2 Location of Controls 4 2 1 Base Unit 8 KX TG5571BXM KX TGA550BXM ...
Page 9: ...4 2 2 Handset 4 2 3 Charger Unit for Optional Handset 9 KX TG5571BXM KX TGA550BXM ...
Page 10: ...4 3 Displays 4 3 1 Display Items 4 3 2 Menu Icons 10 KX TG5571BXM KX TGA550BXM ...
Page 11: ...4 3 3 Troubleshooting Handset LCD 11 KX TG5571BXM KX TGA550BXM ...
Page 12: ...12 KX TG5571BXM KX TGA550BXM ...
Page 13: ...4 4 Settings 4 4 1 Connections 13 KX TG5571BXM KX TGA550BXM ...
Page 14: ...4 4 2 Guide to Handset Programming 14 KX TG5571BXM KX TGA550BXM ...
Page 15: ...15 KX TG5571BXM KX TGA550BXM ...
Page 17: ...4 4 4 Direct Commands 17 KX TG5571BXM KX TGA550BXM ...
Page 18: ...18 KX TG5571BXM KX TGA550BXM ...
Page 19: ...19 KX TG5571BXM KX TGA550BXM ...
Page 21: ...21 KX TG5571BXM KX TGA550BXM ...
Page 22: ...22 KX TG5571BXM KX TGA550BXM ...
Page 23: ...23 KX TG5571BXM KX TGA550BXM ...
Page 24: ...24 KX TG5571BXM KX TGA550BXM ...
Page 40: ...7 9 5 RF DSP Interface Signal Wave Form Test Burst Mode 40 KX TG5571BXM KX TGA550BXM ...
Page 41: ... Test Burst Mode 41 KX TG5571BXM KX TGA550BXM ...
Page 84: ...19 SIGNAL ROUTE Each signal route is as follows 84 KX TG5571BXM KX TGA550BXM ...
Page 85: ...Each signal route is as follows RF part signal route 85 KX TG5571BXM KX TGA550BXM ...
Page 88: ...22 EXPLANATION OF IC TERMINALS RF PART 22 1 IC701 88 KX TG5571BXM KX TGA550BXM ...
Page 89: ...22 2 IC801 Backside Terminal GND 89 KX TG5571BXM KX TGA550BXM ...
Page 90: ...22 3 IC851 Backside Terminal GND 90 KX TG5571BXM KX TGA550BXM ...
Page 93: ...24 CABINET AND ELECTRICAL PARTS BASE UNIT 93 KX TG5571BXM KX TGA550BXM ...
Page 94: ...25 CABINET AND ELECTRICAL PARTS HANDSET 94 KX TG5571BXM KX TGA550BXM ...
Page 95: ...26 CABINET AND ELECTRICAL PARTS CHARGER UNIT 95 KX TG5571BXM KX TGA550BXM ...
Page 96: ...27 ACCESSORIES AND PACKING MATERIALS 27 1 KX TG5571BXM 96 KX TG5571BXM KX TGA550BXM ...
Page 97: ...27 2 KX TGA550BXM Optional Set 97 KX TG5571BXM KX TGA550BXM ...
Page 99: ...28 3 Charger Unit 99 KX TG5571BXM KX TGA550BXM ...
Page 106: ...Memo 106 KX TG5571BXM KX TGA550BXM ...
Page 113: ...Memo 113 KX TG5571BXM KX TGA550BXM ...